/Engine/Source/Runtime/Engine/Classes/Animation/AnimData/IAnimationDataController.h
Changes the attributes of the curve with provided identifier. Broadcasts a EAnimDataModelNotifyType::CurveChanged notify if successful.
Whether or not the curve attributes were set successfully
bool SetCurveAttributes ( const [FAnimationCurveIdentifier](API\Runtime\Engine\Animation\AnimData\FAnimationCurveIdentifier) & CurveId, const [FCurveAttributes](API\Runtime\Engine\Curves\FCurveAttributes) & Attributes, bool bShouldTransact )